Thanks to Facebook, we can now "like" just about anything on the internet. But what if you more than "like" something you see on the Web? What if you "want" it too?Soon there may be a special button for that.

Most of us intuitively know that insulting your boss on Facebook is probably not the best idea, but what about other job-related opinions we have? More to the point, can you be fired for posting them?A recent National Labor Relations Board hearing found that “overly broad” company policies regarding…